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ChatGPT

Who can use this feature?

Someone on your team who uses ChatGPT, working with your N3O contact. Your workspace administrator may have to allow developer mode first.

ChatGPT reaches N3O Cloud through developer mode, which lets you create an app from an MCP server. You give ChatGPT your subscription's address, and each person signs in with their own N3O Cloud account. What the server is and what it can do is on the MCP Server page.

Before you start​

Ask your N3O contact to turn the server on for your subscription, to confirm that ChatGPT is supported, and to give you your subscription's address.

The redirect URL is the one thing that goes back the other way. N3O registers the redirect URL ChatGPT signs people in through, before anyone can sign in.

Availability​

Whether your account has developer mode, and whether your workspace allows it, is OpenAI's to set and it changes, so read their ChatGPT developer mode before you start. Ask your workspace administrator if you cannot find the setting.

Turning on developer mode​

  1. In ChatGPT on the web, open Settings, then Security and login.
  2. Turn on Developer mode.

Creating the app​

  1. Open the Plugins page in ChatGPT and select the plus button. It creates a developer mode app only once developer mode is on.
  2. Enter N3O as the name, along with a description your team will recognise.
  3. Under Connection, choose the option for a public endpoint and enter your subscription's address.
  4. For authentication choose OAuth. Leave any client ID and client secret blank unless your N3O contact has given them to you.
  5. Create the app.

The app then appears under Drafts in your app settings. Its details page lists the tools the server offers, and it is where you turn an individual tool off or refresh the app to pick up tools N3O has added since.

Sending N3O the redirect URL​

OpenAI's Authentication page says ChatGPT uses a redirect URL with a callback ID of its own for a server like this one, and that the exact URL is shown on the MCP server's management page. Copy it and send it to your N3O contact as soon as you have it.

Until N3O has registered it, signing in is turned away. Once N3O confirms, sign in with your own N3O Cloud account when ChatGPT asks you to, and it goes through.

Using it in a conversation​

Choose Developer mode from the plus menu, and select the N3O app for that conversation. Name the app in what you ask, because ChatGPT has its own tools to choose from as well.

What ChatGPT asks before it acts​

A tool that changes a record needs your confirmation before ChatGPT runs it. Read what it is about to send. You can tell ChatGPT to remember your answer for the rest of a conversation, so keep that for a tool you are content for it to run unwatched.

OpenAI describes developer mode as carrying elevated risk, and intends it for people who understand how to configure and test an app safely. A mistaken change is still a change, so review what you approve.

Further reading​

note

If a step fails, send your N3O contact what the screen says.